Convolvulus longipes S.Watson

POWO follows these authorities in synonymising this name:

• Brummitt, R. K. in Hickman, J. C. (ed.) (1993). Calystegia, in Jepson Manual. The Jepson Manual, higher plants of Cilfornia: 517-521. Univ. California Press. [Cited as Calystegia longipes.]
• Cronquist, A. et al. in Cronquist, A., et al. (1984). Convolvulaceae. Intermountain Flora, vascular plants of the intermountain west, U.S.A. 4: 74-84. New York Botanical garden. [Cited as Calystegia longipes.]
• Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Calystegia longipes.]
• Kartesz, J.T. in Kartesz, J.T. (1994). Convolvulaceae. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland: 217-221. Timber Press. [Cited as Calystegia longipes.]

This name was accepted following an alternative taxonomy by these authorities:

• Gray, A. in Gray, A. (1878). Convolvulaceae. Synoptical Flora of North America, edit. 1 2(2): 207-224, 394. [Cited as Convolvulus longipes.]
• Gray, A. in Gray, A. (1886). CNV, supplement, in Syn. Fl. N. Amer. Ed. 2. Synoptical Flora of North America, edit. 1: 433-436. [Cited as Convolvulus longipes.]